They can be steered by sensors which is, for all practical purposes, the same thing. And the new stuff may could have some other form of guidance, but then we don’t know.
Makes little sense that the fielded versions would have no guidance or any ability to maneuver, especially since one version is being developed specifically for internal bay storage in fighter jets and another for the Navy.
In aerodynamics, a hypersonic speed is one that greatly exceeds the speed of sound, often stated as starting at speeds of Mach 5 and above.[1]
They can come in relatively slow and maneuver then speed up then BAM!